Half-Life: Opposing Force is the official game expansion for Half-Life, the thrilling
PC CD-ROM named "Game of the Year" by over 50 publications. In Opposing
Force (a.k.a. "Op For"), players return to the Black Mesa Research Facility
to experience an entirely new episode of single player action. In addition, Op For
also contains a massive collection of new multiplayer content.

The Story

Remember the soldiers who gave you so much trouble in Half-Life? Now you are one
of them--and life is not so easy as part of the Opposing Force.

As a soldier sent in to eliminate Gordon Freeman, you are separated from your base
unit and discover a new alien race amidst the chaos. It's quickly revealed that
these highly advanced alien life forms descended upon Earth to pillage the planet
from the Black Mesa facility when Gordon Freeman transported to the border world
of Xen.

Although you were originally sent into Black Mesa to silence Freeman and his fellow
scientists in the facility, you now find yourself stranded and confused--battling fierce new alien creatures and a
variety of other foes in an effort to save your own life.

But as a military specialist, you are not unarmed. You'll gather a custom arsenal
of new military firearms, experimental weapons and deadly alien devices. And, as
you explore further areas of Black Mesa, you will encounter a new variety of human
characters to interact with--on both friendly and unfriendly terms.

In addition to the extensive new single player experience, Opposing Force will also
contain a robust collection of fresh multiplayer content, including new weapons,
player characters (models), and several new multiplayer maps designed by the experts
at Gearbox Software. Opposing Force will also feature new levels created by all-star
legends of the Dallas gaming community.

Opposing Force is being developed by Gearbox Software and published by Sierra. This
official game extension is due to arrive in retail stores everywhere this November.

Key Features

Return to the Black Mesa Research Facility as a soldier.

Experiment with a host of new military, experimental and alien weapons.

Battle a fierce new alien race and interact with more human characters.

In Opposing Force you'll meet (or kill) some new faces, along with the old ones
for the original Half-Life.

Allies

The Grunts

This time around, the grunts are your colleagues. There will be at least four new
types of grunts (and existing grunt models have been improved upon), and you will
be able to command certain ones much like you were able to team up with security
guards in the original game. You can also order fellow soldiers to do certain tasks,
like cutting through doors or healing your wounds. You'll also be able to call
in these guys as reinforcements.

The Grunts

A security guard who probably is responsible for eating all of the donuts. Expect
him to exchange some nifty dialogue with Barnies. Otis won't be alone. Other
variations on the security guards and scientists will occupy the facilities which
Adrian ventures through in Opposing Force.

Radiation Suit Scientists

Walter and his friends are back again, this time sporting some brand new duds. Like
the scientists in the original Half-Life, these guys can help you out in a number
of ways, including healing you up, unlocking doors, activating retinal scans, and
providing convenient cover for incoming gunfire. They die really nicely!

Drill Sargeant

This is the Drill Sargeant who'll guide you through the Boot Camp (Opposing
Force's version of the Hazard Course). He's a rough and ready feller, and
with the voice acting of the man behind Duke Nukem, you can be sure he'll be
barking orders in true Full Metal Jacket style. Don't give him any flak and
you should come out just fine.

Enemies

Zombie Grunt

An unfortunate grunt who got himself headcrabbed and turned into a zombie. Expect
headcrabbed security guards, as well. These creatures are, as you might expect,
rather mindless, though don't underestimate them. They're quite dangerous
enough, especially if they get close enough to start slashing at you with their
claws. Very nasty stuff.

Pit Drone

The Pit Drone is one of the new Race-X aliens, a race of aliens that appeared in
Black Mesa after Gordon left for Xen. The Pit Drone is somewhat similar to the Alien
Slave, and are controlled by mysterious and unseen entity. Pit Drones have the ability
to shoot spikes from their forehead, which regenerate in time.

Shock Troopers

An incredibly intelligent breed of Race-X alien. They work in packs and communicate
with each other, much like human grunts, and can open portals to bring in reinforcements.

Shock Roach

A pint-size buddy to its trooper brethren, this little varmint spits electricity.
Being a parasite, it's usually near one of the larger aliens, so watch your
step in a fire-fight or he might pop his head up and zap you.

Voltigore

Big, bad-ass four-legged momma-jamba. 'Big' being somewhat of a feature
on Voltigore, the frontal claws are just so, and deadly. It likes spitting electricity,
too. And in true Geiger fashion, when it dies, it becomes unstable and explodes,
causing you quite a bit of pain if you're in the near vicinity!

Weapons / Items

In Opposing Force you get the some of the old weapons for the original Half Life
along with at least seven new weapons. You play as a Grunt on Opposing Force this
time around, so you're going to have to access different types of hardware,
and some better weapons.

Wrench

Say good-bye to your old crowbar, and say hello to this new more powerful Pipe Wrench.
With the new pipe wrench you can use the secondary fire, and it'll be a more
powerful swing, crushing almost crush any crate in one swing.

Barnacle

Remember those things hanging down in Half-Life, where if you touched one you'd
be sucked up to the ceiling? Well now it's a weapon, you can use it as a grappling
hook, use it's tongue to suck enemies in, or you can use it to swing through
the air.

.357 Desert Eagle

Just like the magnum from Half-Life, but it has a better design, and also has an
alternate fire laser sight.

M-249 SAW

Lets just say this is one hell of a gun, and it'll send out the bullets as fast
as you can hold the trigger.

Displacer

Yes, its another one of those experiments, you can fire teleporters at your enemies,
or teleport yourself to Xen.

Shock Rifle

For all those Unreal Tournament people out there you probably know what this is.